Southern Colour Ringing Group

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We made our second visit to Walthamstow Wetlands today to cover the best period for Egrets. There was a real mix of ages with some large fledged birds and still some nests with eggs. It was also noted that there was a higher than normal mortality with a lot of dead young many quite small. We assume the cold and wet weather two weekends ago probably was a big problem for these small chicks and there were at least 4 full broods with dead young around 3 to 4 days old and three dead young that were quite large and clearly had been blown out of nests or tree tops. Many of the nests that had fledged two to four young also had one dead young (probably the smallest bird in the brood) so in terms of the success for this year despite rigning 29 young Egrets today it is in reality from 30 nests quite a poor total..Huge thanks again to the London Wildlife Trust and in particular Charlie and Nadia who came out and helped ringing Egrets and climbing trees as well as sorting the boat out. Great team effort by all attending.

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